Pendant curtain wall



Jan- 8, 1957 G. P. RElNTJEs PENDANT CURTAIN WALL 4 sheets-sheet 1 .FiledSept. 2, 1952 l l l l Il; ./f/ /l/ /f l Buventor Jan. 8, 1957 G. P.RElNTJES 2,776,631

PENDANT CURTAIN WALL Filed sept. 2', 1952 4 sheets-sheet 2 w 'SrwentorGee Rel'vties,

Jan. 8, 1957 Filed Sept. 2, 1952 G. P. REINTJES PENDANT CURTAIN WALL 4Sheets-Sheet 3 l'mventor @www lCI torneg Jan- 8, 1957 P. REINTJES2,776,631

PENDANT CURTAIN WALL.

Filed septlrz, 1952 4 sheets-sheetA l5 iq 1' 5W; :5-

2q is( 23 EN :l l! ll Il ull. *2q u lNvEN'roR BY Gem P Rein* 365 MITAQttowvcy United States Parent O 2,776,631 PENDANT CURTAIN WALL George P.Reintjes, Kansas City, vMo. Application september z, 1952, serial No.307,411

s claims. (Cl. 11o- 1) This invention relates tov curtain walls or slotarches, adjustable or ixed, for use with forging furnaces or as cutfoior curtain walls to divide car type furnaces in one or more units, andlfor use at other points where the construction may be advantageous. Thewall is also adapted for use, inv open hearth furnaces and soaking pitsor wherever damper control is` desired in recuperative or regenerativesystems or as a damper in -ues in breach- -ings for the stopping orretarding of gas iiow.

`One of the chief objects of the invention is` to provide a curtain orllink wall ywhich is suspended on aV metal support or grid, the wallpreferably comprising side by side columns of refractory or tile havingindependent oscillation so that any vinter-mediatte section may swing ifit is struck or contacts` a 'load` or a part of the furnace, withoutstressing Ior straining adjacent parts of the curtain wall.

Another object of the invention is tofproduce a curtain wall comprisingindependent sections: which can be swung out for maintenance or repair,and is -exible to allow lfor warpage, expansion or contractionindependently of adjacent sections of the wal-l.

A further object of 'the invention` is to provide suspension means lofsuch nature tha-t the refractories can be made of rthe preferredmaterial to. suit the furnace operating conditions. Heretotore, in manycurtain walls where the refractory was. subject tol tension it has beennecessary to sacriiice high :spaw-ling characteristics in order -to gaintensile strength. In other cases Where rcfra-ctory of high insulatingproperty -should be used, older methods of support would not permittheir use because of their lack of strength. Withythe support of thelinvention, lhowever, `any type of refractory can be used, as each Itileis preferably carried as `a -un-i-t and` high tensile strength is notnecessary. j

A -still further object of the invention is. toprovide an oscillatorycurtain wall, which may be air orwater cooled as may be necessary underthe operating conditions encountered.

With the general objects named in View and others as will hereinafterappear, the invention consists in certain new and useful features ofconstruction and organization of parts as hereinafter described andclaimed; and in order 'that it may be fully understood, reference is tobe had to the -accomp anying drawings, in which:V

Figure 1 is a cross-section through a wall embodying the invention inwhich la chain is suspended from any overhead support, said chaincarrying tile supporting clips at vertically spaced points.

Figure 2 is a 4face view of the Wall as shown in Figure 1.

'Figure 3 is an enlarged section 'to show the details of the hangersupporting the tile and the chain suspension.

Figure 4 is a view similar to Figure 1 in which a plurality of hangersare linked together to supportythe tile or refractory and illustrating aport or passageway for the circulation of air for cooling purposes.

-Figure 5 isa face view, partly in section, of :the construction shownin Figure 4, together with a fragment of a furnace wall.

Figure 6 is a perspective View of one of the special links forsupporting each column of refractory.

Figure 7 is a perspective view of the link which lsupports the tile andforms the connecting member between the links shown in Figure 6.

Figure 8 shows a wall emb-odying the invention, in combination with anoverhead support andthe side walls of a furnace.

Figure 9 is a reduced section :through a furnace and a wall embodyingthe invention and illustrates in dotted lines the swinging out of arefractory column for repair or replacement, the position it may assumewhen i-t con- -tacts `an obstruction. i

Figure 10 is a perspective view of Ithe preferred type of 4tileembodying the invention.

Figure 11 is a perspective view of the flowermost or bottom tile whichis rounded ott to oifer less resistance to gas ow and to decrease dangerof breakage if it hits an obstruction.

Figure 12 is a view similar to Figure 11 of a curtain wal-l formedofbook tile.

'Figure 13 is a perspective View of an intermediate book tile used inFigure 12.

Figure 14 is a perspective view of the lowermost or bottom book tile.

Figure l5 is a` cross-section of `a furnace wal-l as it may appear whencarried by water-cooled U-shaped tubes.

Figure 16 is crossesection ythrough a similar wall in which watercooling is provided by a pair of pipes in telescoped position.

Figure 17 is 4a perspective view of a .tile hanger which may be usedwith either of the suspended pipe constructions.

In Ithe said drawings, where like reference characters identifycorresponding parts in all of the figures, 1 is the side wall, 2.k theroof and 3 `t-he bottom of a furnace chamber. The curtain wall will besuspended by any suitable transverse support, lsuch as `a rotatable drum4 or a beam 4a. With the `drum `4, .the wall may be vsupported byilexible chains or cab'les I5v for llifting purposes. In the drawings,three dierent types of' oscillatory iwal-l supports are illustrated,namely, `Figure 1, a flexible chain; Figure 4, a specially :designedlink suspension; and Figure 16, `a pipe or rod suspension, each of theseconstructions being hereinafter more particularly described.

Where 'link chains 5, `Figure l, are to form the supports for a seriesof flexible spaced independent columns of refractory forming a curtainwall, predetermined links Asupport 'ti-le hangers 6 of saddle type andprojecting by preference in opposite directions paralleling the .axis ofthe overhead support. The saddle hangers are held in position byupwardly exten-ding iianges 7 which are clamped by a bolt 8 to asuperposed link of the chain.

Where a linked construction other than a chainis to be used, Figure 4,the links may comprise elongated castings 9 having slotted hook ends 10.Engaging the hook ends 10 of the castings 9 are socketed open hookportions 12 on the tile hangers 13 which are preferably designed tosupport a pair of tile. With the construction shown it Will be evident`that as long as the device is. in tensionthe links and hangers arelocked against accidental dislodgernent by sidewise movement.

Where a construction is desired which is rigid.v a rod or pipe 23,Figure. 16, may be used, said-v pipe beingsus pended for oscillation aswill hereinafter appear, by preference. In this construction the tilehangers 24 are welded or otherwise attached to the pendant or verticalsupport.

The refractories or tile 11 to be used with the supports shown inFigures 1, 4 and 16, are illustrated in Figures 10 and 1l. The tile 1lisof generally rectangular form and has one of its faces provided with alongitudinal slot 14 which is intercepted adjacent one end by a socket15 to receive the tile hanger. The lowermost tile of each column ispreferably rounded as at .i6 to eliminate sharp corners which aresubject to spawling.

If desired, the suspended tile may be of book form as shown in Figures12 through 14, so that the individual tile of each column may haverocking movement on the adjacent tile. Intermediate tile of this kind isshown at 17. This tile has a longitudinal slot 18 in one face which isflared at 19 above thc hanger socket to accommodate the rocking movementin relation to superposed tile. The lowermost book tile 20 is alsoprovided with a flared slot 21 above its tile hanger receiving socket 22for permitting swinging movement of the tile as dotted in Figure l2.

Under some operating conditions it may be desirable to cool therefractory and metal supports by the circulation of gaseous or liquidcooling mediums. One means of circulating cooling air through thecurtain wall is shown in Figure 4, where the lower tiles 16a are formedwith transverse passageways 25. The longitudinal groove 14 of each tilecommunicates with the groove 25. One sidewall 2v of the furnace isformed with a through port 26 through which the air, under pressure orby gravity, is fed. By preference, a suitable packing 27 is insertedbetween the outermost column of tile and the furnace wall 2 asillustrated, but it will be noted that swinging movement of any tilecolumn will interrupt air ow beyond the plane of such column. Of course,the cooling air may be omitted as indicated above, in which case thegrooves and ports 26 will not be used.

If tiuid, such as water, is to be used as the cooling medium, the pipesupport 23 may be capped as at 28 at its lower end. The upper end of thepipe is equipped with a two-way fitting 29 which is connected at oneside to a water inlet exible tube 30 which leads to the capped lower endof the pipe 2.3. Water is discharged by tube 3) circulates upwardlythrough the pipe 23 and out through a flexible connection 31 to amanifold 32 carried by the overhead support or beam da. Inlet tube 30 isfed from a supply manifold 33 also carried by beam 4a. One method ofsuspending the pipe for oscillation is to equip its tting 29 with an eye34, said eye receiving a U- bolt 35 carried by the beam 4a.

An alternate water cooled wall is shown in Figure 15, Where pipe 36 isformed in a U-support. One leg of the U-support is connected by flexibletube 3/ to a water feed manifold 38, and the other leg is connected byexible tube 39 to an outlet manifold 4t). The tile 41 and 42 as used inthis construction are identical with those numbered 11 and 16, excepttheir abutting faces are formed with parallel grooves to accommodate thetwo legs of the pipe. In this arrangement the upper ends of the U-pipeare attached to a cross-bar 42a which may be suspended for oscillationwith an eye-bolt 43 and U-clip 44.

In considering the above description and drawings it will be apparentthat the double pendant support for each tile as where the U-pipc isused, may be modified by substitution of a plurality of parallel chains5 or links 9-10- This multiple suspension is particularly desirable withthick or high-refractory walls where the load on the oscillating supportis fairly heavy as such multiple suspension divides the load between thependant supports and lessens the tendency to yield or creep at hightemperatures.

From the above description and drawings, it will be apparent that I haveproduced a construction embodying all of the features of advantage setforth as desirable, and while I have described and illustrated thepreferred construction, it is to be understood that I reserve the rightto all changes within the spirit and scope of the appended claims.

I claim:

l. A furnace curtain wall comprising an elongated support having ahorizontal axis, a pendant support mounted to the elongated support forswinging in a vertical plane at right angles to the axis of theelongated support, tile hangers vertically spaced lengthwise of thependant support and projecting in opposite directions from said supportat right angles to the plane of swinging movement, tile arranged inpairs with their upper and lower faces respectively contiguous to thelower and upper faces of adjacent pairs of tile and having matchingvertical slots accommodating the pendant support, each tile having asocket laterally opening into the slot adjacent the upper end of thetile for suspending the tile from the hanger independently of adjacenttile.

2. A furnace curtain wall comprising an elongated support having ahorizontal axis, a plurality of pendant supports equally spacedhorizontally for independent swinging movement from the elongatedsupport in parallel vertical planes at right angles to the axis of theelongated support, tile hangers vertically spaced lengthwise of eachpendant support and projecting in opposite directions from the supportsat right angles to the plane of vertical swinging movement, and tilearranged in pairs suspended from each hanger, each tile having avertical slot accommodating the pendant support with laterally openingsockets Y in the slots receiving the hangers, with corresponding tile onadjacent supports in abutting relation when in vertical position and thetile on each pendant support having its upper and lower facesrespectively contiguous to the lower and upper faces of adjacent tile,each tile column being free for swinging movement independently ofadjacent tile columns.

3. A furnace curtain wall comprising an elongated support having ahorizontal axis, a pendant metal support mounted for swinging movementon the elongated support in a vertical plane at right angles to the axisof the elongated support, and comprising alternate links andhorizontally extending tile hanger members, each hanger having laterallyopening hooks, and the opposite ends of the links having open hooks tobe seated within the hooks of the tile hangers, whereby the hooks cannotbe disengaged by sidewise movement as long as the support is subject totension, and tile arranged back to back in pairs on said hangers, eachtile having a slot accommodating the links with sockets laterallyopening into the slots adjacent the upper end of the tile to receive thehangers whereby each tile is suspended from the hanger independently ofadjacent tile, the upper and lower faces of each tile being contiguousto the lower and upper faces respectively of adjacent tile.

4. A suspended furnace wall comprising an elongated support having ahorizontal axis, a vertically pendant linked metal member secured to thesupport for swinging movement at right angles to the axis of thesupport, said linked member alternately comprising tile hanger andsuspension members, the latter being detachably secured to the tilehanger members, said tile hanger members projecting in oppositedirections parallel to the axis of the support, and tile arranged inpairs back to back on said hangers, each tile having a vertical slotaccommodating the metal link member with a socket laterally opening intothe slot adjacent the upper end of the tile and receiving the tilehanger member, said tile pairs being arranged with their upper and lowerfaces respectively contiguous to the lower and upper faces of adjacenttile pairs.

5. A suspended furnace wall comprising an elongated support having ahorizontal axis, a plurality of vertically pendant linked memberssecured to the support to swing References Cited in the tile of thispatent UNITED STATES PATENTS 1,048,471 St. John Dec. 24, 1912 6 Fox Jan.25, Smith Aug. 23, Liptak June 5, Shook Nov. 15, Ashenden Dec. 13,Wright Apr. 11,

FOREIGN PATENTS Great Britain Feb. 24,

